---
import type { TocItem } from '../../utils/generateToC';

interface Props {
	toc: TocItem[];
	depth?: number;
	isMobile?: boolean;
}

const { toc, isMobile = false, depth = 0 } = Astro.props;
---

<ul class:list={{ isMobile }}>
	{
		toc.map((heading) => (
			<li>
				<a href={'#' + heading.slug}>
					<span>{heading.text}</span>
				</a>
				{heading.children.length > 0 && (
					<Astro.self toc={heading.children} depth={depth + 1} isMobile={isMobile} />
				)}
			</li>
		))
	}
</ul>

<style define:vars={{ depth }}>
	@layer starlight.core {
		ul {
			padding: 0;
			list-style: none;
		}
		a {
			--pad-inline: 0.5rem;
			display: block;
			border-radius: 0.25rem;
			padding-block: 0.25rem;
			padding-inline: calc(1rem * var(--depth) + var(--pad-inline)) var(--pad-inline);
			line-height: 1.25;
		}
		a[aria-current='true'] {
			color: var(--sl-color-text-accent);
		}
		.isMobile a {
			--pad-inline: 1rem;
			display: flex;
			justify-content: space-between;
			gap: var(--pad-inline);
			border-top: 1px solid var(--sl-color-gray-6);
			border-radius: 0;
			padding-block: 0.5rem;
			color: var(--sl-color-text);
			font-size: var(--sl-text-sm);
			text-decoration: none;
			outline-offset: var(--sl-outline-offset-inside);
		}
		.isMobile:first-child > li:first-child > a {
			border-top: 0;
		}
		.isMobile a[aria-current='true'],
		.isMobile a[aria-current='true']:hover,
		.isMobile a[aria-current='true']:focus {
			color: var(--sl-color-white);
			background-color: unset;
		}
		.isMobile a[aria-current='true']::after {
			content: '';
			width: 1rem;
			background-color: var(--sl-color-text-accent);
			/* Check mark SVG icon */
			-webkit-mask-image: url('');
			mask-image: url('');
			-webkit-mask-repeat: no-repeat;
			mask-repeat: no-repeat;
			flex-shrink: 0;
		}
	}
</style>
